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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        // ES6中类的写法
       const Persion = class {
            constructor(){// 构造方法函数，调用new，自动执行
            }
        }
        Persion.aaa = function () {
            return  `123`
        }
        console.log( Persion.aaa());
    </script>
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